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CVE-2026-57621

WordPress Booktics plugin <= 1.0.21 - PHP Object Injection vulnerability

9.8 Critical

Unauthenticated PHP Object Injection in Booktics <= 1.0.21 versions.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.56%Up 0.2 points since Jul 3, 2026
90%50%10%1%

What each source reports

CVE List Score used 9.8

WordPress Booktics plugin <= 1.0.21 - PHP Object Injection vulnerability

Unauthenticated PHP Object Injection in Booktics <= 1.0.21 versions.

Record
CVE-2026-57621
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-502
Updated
2026-11-02
EUVDEUVD-2026-41364 9.8

Unauthenticated PHP Object Injection in Booktics <= 1.0.21 versions.

Record
EUVD-2026-41364
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-p7cq-jc3q-mqj2 9.8

Unauthenticated PHP Object Injection in Booktics <= 1.0.21 versions.

Unauthenticated PHP Object Injection in Booktics <= 1.0.21 versions.

Record
GHSA-p7cq-jc3q-mqj2
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-502
Updated
2026-11-02
NVD 9.8

Unauthenticated PHP Object Injection in Booktics <= 1.0.21 versions.

Record
CVE-2026-57621
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-502
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-57621 is a critical vulnerability (CVSS 9.8) in Arraytics Booktics, published July 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.56%, the 47th percentile. No source names a fixed version.

References

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